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Vehicle control device

a control device and vehicle technology, applied in control devices, external condition input parameters, vehicle components, etc., can solve the problems of traffic signal not being recognized, more difficult to obtain information (traffic signal information) ahead from images captured by cameras, etc., and achieve the effect of simple configuration

Active Publication Date: 2020-09-10
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention allows for easy handling of various unrecognizable states using a simple configuration.

Problems solved by technology

In an automatically driven vehicle as well, the higher the height of the preceding vehicle becomes, the more difficult it is to obtain information (information of traffic signals) ahead from images captured by the camera.
For example, the traffic signal may not be recognized due to a device failure or bad weather.

Method used

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  • Vehicle control device
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Examples

Experimental program
Comparison scheme
Effect test

first modification

4.1. First Modification

[0078]In FIG. 8, the line A2 indicates a transition of the travel speed of the host vehicle 90 along with the passage of time, and the line B2 indicates a transition of the distance between the position of the host vehicle 90 and the position of the traffic signal device 92 along with the passage of time. Moreover, similar to the lines A2 and B2, the lines A2′ and B2′ indicate transitions in the case that the external environment recognition unit 66 does not recognize the traffic signal.

[0079]If a large third rate of deceleration a3 is allowed in the process of step S9 shown in FIG. 4, the first distance D1 can be made shorter. More specifically, the first distance D1 can be set in accordance with the third rate of deceleration a3. In the case that the first distance D1′ which is shorter than the first distance D1 is used, the relationship between time and the travel speed becomes as shown by the line A2′ shown in FIG. 8.

[0080]The host vehicle 90 reaches the f...

second modification

4.2. Second Modification

[0082]The operation determination unit 78 may cancel the deceleration control currently being executed, in the case that an operation intention or a monitoring intention of the vehicle occupant is detected on the basis of a signal output from the operation sensors 24.

third modification

4.3. Third Modification

[0083]In the process shown in FIG. 4, only the warning (step S6) may be performed, without necessarily performing steps S3 to S5 and steps S7 to S11.

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PUM

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Abstract

If an external environment recognition unit recognizes a traffic signal indicating a stop instruction at a point in time when a distance detection unit detects a distance less than or equal to a first distance, an operation determination unit performs deceleration control at a first rate of deceleration at a point in time when the distance detection unit detects a distance less than or equal to a second distance shorter than the first distance, and if the external environment recognition unit does not recognize the traffic signal at the point in time when the distance detection unit detects the distance less than or equal to the first distance, the operation determination unit performs the deceleration control at a second rate of deceleration smaller than the first rate of deceleration at the point in time when the distance detection unit detects the distance less than or equal to the first distance.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application is based upon and claims the benefit of priority from Japanese Patent Application No. 2019-042113 filed on Mar. 8, 2019, the contents of which are incorporated herein by reference.BACKGROUND OF THE INVENTIONField of the Invention[0002]The present invention relates to a vehicle control device which is capable of automatically performing at least one of a driving force output control, a braking control, and a steering control of a host vehicle.Description of the Related Art[0003]In Japanese Laid-Open Patent Publication No. 2004-301833, an inter-vehicle distance control apparatus is disclosed in which a driver is capable of visually recognizing a traffic signal device which is in front of a host vehicle (driver's own vehicle), by performing a control such as setting a target inter-vehicle distance to become larger as the height of a preceding vehicle is higher.SUMMARY OF THE INVENTION[0004]An automatically driven vehicle has ...

Claims

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Application Information

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IPC IPC(8): B60W30/18B60W50/14
CPCB60W2555/60B60W50/14B60W30/181B60W30/09B60W30/18154B60W2556/45B60W2720/106B60W2520/10B60W2540/18B60W2554/802B60W2556/50B60W10/18B60W10/20B60W2420/403
Inventor IWASAKI, SHUN
Owner HONDA MOTOR CO LTD